OP, I don't want to be insulting to you, my intention is merely to offer assistance.
It is likely a new iMac is going to be released this month (October).
If you waited, not only would you be getting a brand new machine, but you also might possibly get more for your money. Just as Apple SSD prices have gone down it is possible you could get better specs for the same price (I'm not sure on this).
But you also bought a model that is not an optimal model to buy. the low end graphics card provides a choppy experience and the 1tb fusion is a disgrace. You're only getting 24gb of SSD space.
I was about to (2 weeks ago) pull the trigger on a brand new 5K iMac
3.3ghz i5
512gb SSD
M395 graphics card
Now THAT is a model that provides a good cost to spec ratio. I daresay a "sweet spot".
I would strongly recommend to wait for the new one, I was in the same position as you but I waited.